Judet Henri, Tourneaud Jean Jacques: Sliding knee prothesis.. Rech de Nouvelles Protheses Sc, December 13, 1989: EP0346183-A1 (145 worldwide citation)

The knee prosthesis in which two parts, connected to the femur and to the tibia respectively, are in sliding contact via parallel surfaces formed with two different radii of curvature like the condyles of the femur; the said parts (a and c) are simply applied one against the other by way of the succ ...

Cairney James, Williams Simon Rushbrook Micro: Smoke detector devices and detector circuit.. Cairney James, Bryce Alex Peacock, Murray Melvin Ingram, December 13, 1989: EP0346152-A2 (84 worldwide citation)

A smoke detector device comprises a housing (30) adapted to be mounted below an existing ceiling rose fitting (32) and to be clamped to an electrical flex (38) passing therethrough. The housing (30) encloses a smoke detector circuit formed on a printed circuit board (62), a battery (48) and an alarm ...

Cardone Michele, Grandini Angelo, Zaramella Bruno: Magnetic gripping apparatus having circuit for eliminating residual flux.. Tecnomagnete, December 13, 1989: EP0345554-A1 (77 worldwide citation)

A magnetic gripping apparatus, of the permanent magnet type, comprising a base plate (10) and peripheral walls (11), at least a first and a second pole units, each pole unit comprising a main pole piece (13) having an outer face defining a gripping surface, main permanent magnets (14) arranged betwe ...

Pailles Jean Claude, Girault Marc: Apparatus for protected data communication.. France Etat, December 13, 1989: EP0346180-A1 (59 worldwide citation)

The communication apparatus includes a user set comprising storage means and means of calculating over the set Zn of whole numbers modulo n, n being of very large size and equal to the product of two first integers p and q. These storage means store a first integer e, the integer n, integers for ide ...

Bell Michael Niall, Cadden Aidan Patrick Joseph, Head Robert Arthur, Handley Graham Robert, Paterson Mark Robert, Sadler Alan Arthur: Coated optical fibres.. Ici, Bicc And Corning T A O, December 13, 1989: EP0345968-A2 (51 worldwide citation)

A coated optical fibre assembly suitable for blowing through a microduct, said assembly comprising at least one optical fibre (1) and having an external coating (5) comprising a radiation-cured polymer containing particulate matter.

Lee Casey K, Clemow Alastair J, Chen Elizabeth H, Langrane Noshir A, Parsons John R, Alexander Harold: Functional and biocompatible intervertebral disc spacer.. Johnson & Johnson Orthopaedics, Univ New Jersey Med, Univ Rutgers, December 13, 1989: EP0346129-A1 (46 worldwide citation)

The construction and manufacturing technique for a functional biocompatible intervertebral disc spacer is described. This device is useful for a replacement for a degenerated disc in certain treatments of back pain and spinal disease. The disc spacer possesses mechanical properties akin to those of ...

Joustra Annie Hendrika, de Bruijn Wouter, Drent Eit, Reman Willem George: A process for the preparation of an oxirane compound.. Shell Int Research, December 13, 1989: EP0345856-A1 (44 worldwide citation)

The invention relates to a process for the preparation of an oxirane compound by reacting an olefinic compound with an organic hydroperoxide by the use of a heterogeneous catalyst, which is essentially insoluble in the reaction mixture, said catalyst comprising, titanium in chemical combination with ...

Harada Masana C O Mitsubishi D: Semiconductor device and manufacturing method thereof.. Mitsubishi Electric, December 13, 1989: EP0345380-A2 (42 worldwide citation)

Floating well regions (10) are provided just under trenches in which buried gates (5) are formed. The floating well regions (10) moderate an electric field concentration in the vicinity of the corner and bottom portions of the trenches, in the OFF state of the semiconductor device.

Yoneyama Hiroto, Yashiki Atushi, Kodama Toshiyuki: Route guidance system for a mobile telecommunication system.. Oki Electric, December 13, 1989: EP0345818-A2 (36 worldwide citation)

A mobile telecommunications system includes aplurality of base stations (10) each being communicatable with a mobile station (16) by radio, and a telecommunications network (22) accommodating the plurality of base stations (10) for switching communications to the plurality of base stations (10). A s ...

Bailey Douglas J: Fire barrier material.. Standard Oil Co Ohio, December 13, 1989: EP0346126-A2 (36 worldwide citation)

A fire barrier material for use in building construction comprising a sandwich structure (1) have a first (2) and second (3) outer layers comprising a high temperature resistant material having corrugations (7, 9) therein and an intermediate layer (5) comprising a flame retardant fibrous material wh ...